94 2.5 engine pulsing? - JeepForum.com
Sign Up   Today's Posts
User: Pass: Remember?
Advertise Here
Jeep Home Jeep Forum Jeep Classifieds Jeep Registry JeepSpace Jeep Reviews Jeep Gallery Jeep Clubs Jeep Groups Jeep Videos Jeep Events Jeep Articles
Go Back JeepForum.com > Models > Jeep Wrangler Forums > YJ Wrangler Technical Forum > 94 2.5 engine pulsing?

Dana 30 Truss for your TJ, LJ, ZJ, and XJFS: 2007-2013 Jeep Wrangler "HALO" Angel Eye KitFS: Wranger BRIGHT License Plate LED! Just $3! Great value

Unread 08-30-2009, 11:43 PM   #1
Registered User
1998 TJ Wrangler 
Join Date: Apr 2009
Location: S.E., MI
Posts: 232
94 2.5 engine pulsing?

My engine revs up and down while driving for about 30 seconds, then runs normal. This happens about every 5 - 10 minutes at random. It also idles normal.

Any ideas?

All I need is 4 more inches.
My flat tow trail riding 98 TJ build http://www.jeepforum.com/forum/f22/f...lcome-1485905/
Shawn94 is offline   Reply With Quote
Unread 08-31-2009, 07:57 AM   #2
Registered User
1991 YJ Wrangler 
Join Date: Apr 2008
Location: Meridian, Idaho
Posts: 2,554
If you don't have any codes to point you in a course of action, then I would first look for vacuum leaks and then give the throttle body and IAC a good cleaning. Remove the TB and get a new mounting gasket. Clean the bore and IAC housing thoroughly with carb cleaner and see how she does.
idaholtby is offline   Reply With Quote
Thread Tools

Suggested Threads

Jeep, Wrangler, Cherokee, Grand Cherokee, and other models are copyrighted and trademarked to Jeep/Chrysler Corporation. JeepForum.com is not in any way associated with Jeep or the Chrysler Corp.